The new SA-1 amp is a sub-woofer plate amp that was designed to be used to power subs in an open baffle or sealed box configuration.
This little amp will output 200 watts into 4 ohms and 110 watts into 8 ohms.
It is also very small and will fit on the back panel of even a narrow shaped speaker. It measures only 7.125" wide and 10.625" tall.
It has a removable IEC and will work with 110 to 120 volts or 220 to 240 volt power.
It also has high level and low level inputs.
The really unique thing about this amp is the output response. I had a circuit designed that would mirror image the roll off of a sealed box or open baffle design.
See my measured output:
The Red line is the measured output of the amp that I use with my Clio.
The Green line is with the crossover set all the way up. The Purple line is with the crossover setting about half way up. And then the Blue line is with the crossover turned all the way down.
As you can see, with this amp, you can get a -3db in the low 20's with the right open baffle woofers or sealed box woofers. It is also ideal for use with our SW-12B woofers: http://www.gr-research.com/index.asp?PageAction=VIEWPROD&ProdID=131
There is also a high pass filter built in to keep from over driving the sub with information below 20Hz.
Here is a factory made measurement:
The Red line is with the crossover turned all the way up and the Purple line is with it turned all the way down.
Amps are in stock and are $129 each.
These amps will also be the amps that come with the new V-2 loudspeaker kit seen here: http://www.audiocircle.com/index.php?topic=71532.0